code: def __init__(
      self,
      tenant=None,
      namespace=None,
      vhost=None,
      send=None,
      receive=None,
  ):
      self.tenant = tenant
      self.namespace = namespace
      self.vhost = vhost
      self.send = send
      self.receive = receive
  
imports: import json
  from logging import getLogger
  from typing import List, Optional
  from fate.arch.federation.api import PartyMeta
  from fate.arch.federation.message_queue import MessageQueueBasedFederation, Party
  from ._mq_channel import MQChannel
  from ._rabbit_manager import RabbitManager
label_desc: Use image node_id 1 to create a new _TopicPair object from inherited base classes: object with example: obj = _TopicPair(tenant, namespace, vhost, send, receive)